Unverified84% confidenceDecision RuleTime unknown
果仁颜色偏白偏浅为新鲜，若果仁表面发黄、发暗或带黑斑，说明存放过久或氧化，营养流失且口感变涩
1
Sources
84%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified核桃仁颜色越浅越新鲜，呈黄白色为佳；发黄发暗甚至带黑斑说明氧化或存放过久，油脂已酸败，会有明显哈喇味91% similarUnverified碧根果仁颜色应为均匀浅黄至金黄，若果仁发黑、褐斑多或颜色不均，多为存放过久或烘烤过度氧化，口感发苦86% similarUnverified艾绒颜色越金黄越纯净（去除杂质多），发绿发青多为新艾或杂质多，发黑可能受潮霉变；正品陈艾应呈土黄或金黄色、绒软无枝梗、气味清香不刺鼻86% similarUnverified核桃仁颜色越浅（浅黄琥珀色）越新鲜，若仁色发黑、发红或油亮发暗，说明已氧化哈败，油脂酸败会产生刺喉的哈喇味85% similarUnverified色泽均匀度反映干燥工艺，优质玉竹片色泽金黄或黄白一致、油润有光泽；出现大量黑斑、褐斑或色泽杂乱不均的多为陈货或干燥不当，有效成分流失且可能霉变84% similar
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